Exact Mass: 431.1838

Exact Mass Matches: 431.1838

Found 81 metabolites which its exact mass value is equals to given mass value 431.1838, within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error 0.0002 dalton.

   

N-BUTYL TADALAFIL

N-BUTYL TADALAFIL

C25H25N3O4 (431.1845)


   

Ala Met Asn Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-aminopropanamido]-4-(methylsulfanyl)butanamido]-3-carbamoylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Ala Met Pro Asn

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-aminopropanamido]-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Ala Asn Met Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-aminopropanamido]-3-carbamoylpropanamido]-4-(methylsulfanyl)butanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Ala Asn Pro Met

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-aminopropanamido]-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Ala Pro Met Asn

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-aminopropanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanamido]-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Ala Pro Asn Met

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-aminopropanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Cys Asn Pro Val

(2S)-2-{[(2S)-1-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Cys Asn Val Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-3-carbamoylpropanamido]-3-methylbutanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Cys Pro Asn Val

(2S)-2-[(2S)-2-{[(2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanamido]-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Cys Pro Val Asn

(2S)-2-[(2S)-2-{[(2S)-1-[(2R)-2-amino-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-3-methylbutanamido]-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Cys Val Asn Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-3-methylbutanamido]-3-carbamoylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Cys Val Pro Asn

(2S)-2-{[(2S)-1-[(2S)-2-[(2R)-2-amino-3-sulfanylpropanamido]-3-methylbutanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Gly Met Pro Gln

(2S)-2-{[(2S)-1-[(2S)-2-(2-aminoacetamido)-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}-4-carbamoylbutanoic acid

C17H29N5O6S (431.1838)


   

Gly Met Gln Pro

(2S)-1-[(2S)-2-[(2S)-2-(2-aminoacetamido)-4-(methylsulfanyl)butanamido]-4-carbamoylbutanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Gly Pro Met Gln

(2S)-2-[(2S)-2-{[(2S)-1-(2-aminoacetyl)pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanamido]-4-carbamoylbutanoic acid

C17H29N5O6S (431.1838)


   

Gly Pro Gln Met

(2S)-2-[(2S)-2-{[(2S)-1-(2-aminoacetyl)pyrrolidin-2-yl]formamido}-4-carbamoylbutanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Gly Gln Met Pro

(2S)-1-[(2S)-2-[(2S)-2-(2-aminoacetamido)-4-carbamoylbutanamido]-4-(methylsulfanyl)butanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Gly Gln Pro Met

(2S)-2-{[(2S)-1-[(2S)-2-(2-aminoacetamido)-4-carbamoylbutanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Met Ala Asn Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]propanamido]-3-carbamoylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Met Ala Pro Asn

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]propanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Met Gly Pro Gln

(2S)-2-{[(2S)-1-{2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]acetyl}pyrrolidin-2-yl]formamido}-4-carbamoylbutanoic acid

C17H29N5O6S (431.1838)


   

Met Gly Gln Pro

(2S)-1-[(2S)-2-{2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]acetamido}-4-carbamoylbutanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Met Asn Ala Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]-3-carbamoylpropanamido]propanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Met Asn Pro Ala

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}propanoic acid

C17H29N5O6S (431.1838)


   

Met Pro Ala Asn

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}propanamido]-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Met Pro Gly Gln

(2S)-2-(2-{[(2S)-1-[(2S)-2-amino-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}acetamido)-4-carbamoylbutanoic acid

C17H29N5O6S (431.1838)


   

Met Pro Asn Ala

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Met Pro Gln Gly

2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}-4-carbamoylbutanamido]acetic acid

C17H29N5O6S (431.1838)


   

Met Gln Gly Pro

(2S)-1-{2-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]-4-carbamoylbutanamido]acetyl}pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Met Gln Pro Gly

2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]-4-carbamoylbutanoyl]pyrrolidin-2-yl]formamido}acetic acid

C17H29N5O6S (431.1838)


   

Asn Ala Met Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]propanamido]-4-(methylsulfanyl)butanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Asn Ala Pro Met

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]propanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Asn Cys Pro Val

(2S)-2-{[(2S)-1-[(2R)-2-[(2S)-2-amino-3-carbamoylpropanamido]-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Asn Cys Val Pro

(2S)-1-[(2S)-2-[(2R)-2-[(2S)-2-amino-3-carbamoylpropanamido]-3-sulfanylpropanamido]-3-methylbutanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Asn Met Ala Pro

(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]-4-(methylsulfanyl)butanamido]propanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Asn Met Pro Ala

(2S)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}propanoic acid

C17H29N5O6S (431.1838)


   

Asn Pro Ala Met

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}propanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Asn Pro Cys Val

(2S)-2-[(2R)-2-{[(2S)-1-[(2S)-2-amino-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-3-sulfanylpropanamido]-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Asn Pro Met Ala

(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Asn Pro Val Cys

(2R)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-3-methylbutanamido]-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

Asn Val Cys Pro

(2S)-1-[(2R)-2-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]-3-methylbutanamido]-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Asn Val Pro Cys

(2R)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-3-carbamoylpropanamido]-3-methylbutanoyl]pyrrolidin-2-yl]formamido}-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

Pro Ala Met Asn

(2S)-3-carbamoyl-2-[(2S)-4-(methylsulfanyl)-2-[(2S)-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]butanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Ala Asn Met

(2S)-2-[(2S)-3-carbamoyl-2-[(2S)-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]propanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Pro Cys Asn Val

(2S)-2-[(2S)-3-carbamoyl-2-[(2R)-2-[(2S)-pyrrolidin-2-ylformamido]-3-sulfanylpropanamido]propanamido]-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Pro Cys Val Asn

(2S)-3-carbamoyl-2-[(2S)-3-methyl-2-[(2R)-2-[(2S)-pyrrolidin-2-ylformamido]-3-sulfanylpropanamido]butanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Gly Met Gln

(2S)-4-carbamoyl-2-[(2S)-4-(methylsulfanyl)-2-{2-[(2S)-pyrrolidin-2-ylformamido]acetamido}butanamido]butanoic acid

C17H29N5O6S (431.1838)


   

Pro Gly Gln Met

(2S)-2-[(2S)-4-carbamoyl-2-{2-[(2S)-pyrrolidin-2-ylformamido]acetamido}butanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Pro Met Ala Asn

(2S)-3-carbamoyl-2-[(2S)-2-[(2S)-4-(methylsulfanyl)-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]propanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Met Gly Gln

(2S)-4-carbamoyl-2-{2-[(2S)-4-(methylsulfanyl)-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]acetamido}butanoic acid

C17H29N5O6S (431.1838)


   

Pro Met Asn Ala

(2S)-2-[(2S)-3-carbamoyl-2-[(2S)-4-(methylsulfanyl)-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]propanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Met Gln Gly

2-[(2S)-4-carbamoyl-2-[(2S)-4-(methylsulfanyl)-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]butanamido]acetic acid

C17H29N5O6S (431.1838)


   

Pro Asn Ala Met

(2S)-2-[(2S)-2-[(2S)-3-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]propanamido]-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Pro Asn Cys Val

(2S)-2-[(2R)-2-[(2S)-3-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]-3-sulfanylpropanamido]-3-methylbutanoic acid

C17H29N5O6S (431.1838)


   

Pro Asn Met Ala

(2S)-2-[(2S)-2-[(2S)-3-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]-4-(methylsulfanyl)butanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Asn Val Cys

(2R)-2-[(2S)-2-[(2S)-3-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]propanamido]-3-methylbutanamido]-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

Pro Gln Gly Met

(2S)-2-{2-[(2S)-4-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]acetamido}-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Pro Gln Met Gly

2-[(2S)-2-[(2S)-4-carbamoyl-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]-4-(methylsulfanyl)butanamido]acetic acid

C17H29N5O6S (431.1838)


   

Pro Val Cys Asn

(2S)-3-carbamoyl-2-[(2R)-2-[(2S)-3-methyl-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]-3-sulfanylpropanamido]propanoic acid

C17H29N5O6S (431.1838)


   

Pro Val Asn Cys

(2R)-2-[(2S)-3-carbamoyl-2-[(2S)-3-methyl-2-[(2S)-pyrrolidin-2-ylformamido]butanamido]propanamido]-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

Gln Gly Met Pro

(2S)-1-[(2S)-2-{2-[(2S)-2-amino-4-carbamoylbutanamido]acetamido}-4-(methylsulfanyl)butanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Gln Gly Pro Met

(2S)-2-{[(2S)-1-{2-[(2S)-2-amino-4-carbamoylbutanamido]acetyl}pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Gln Met Gly Pro

(2S)-1-{2-[(2S)-2-[(2S)-2-amino-4-carbamoylbutanamido]-4-(methylsulfanyl)butanamido]acetyl}pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Gln Met Pro Gly

2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-4-carbamoylbutanamido]-4-(methylsulfanyl)butanoyl]pyrrolidin-2-yl]formamido}acetic acid

C17H29N5O6S (431.1838)


   

Gln Pro Gly Met

(2S)-2-(2-{[(2S)-1-[(2S)-2-amino-4-carbamoylbutanoyl]pyrrolidin-2-yl]formamido}acetamido)-4-(methylsulfanyl)butanoic acid

C17H29N5O6S (431.1838)


   

Gln Pro Met Gly

2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-4-carbamoylbutanoyl]pyrrolidin-2-yl]formamido}-4-(methylsulfanyl)butanamido]acetic acid

C17H29N5O6S (431.1838)


   

Val Cys Asn Pro

(2S)-1-[(2S)-2-[(2R)-2-[(2S)-2-amino-3-methylbutanamido]-3-sulfanylpropanamido]-3-carbamoylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Val Cys Pro Asn

(2S)-2-{[(2S)-1-[(2R)-2-[(2S)-2-amino-3-methylbutanamido]-3-sulfanylpropanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Val Asn Cys Pro

(2S)-1-[(2R)-2-[(2S)-2-[(2S)-2-amino-3-methylbutanamido]-3-carbamoylpropanamido]-3-sulfanylpropanoyl]pyrrolidine-2-carboxylic acid

C17H29N5O6S (431.1838)


   

Val Asn Pro Cys

(2R)-2-{[(2S)-1-[(2S)-2-[(2S)-2-amino-3-methylbutanamido]-3-carbamoylpropanoyl]pyrrolidin-2-yl]formamido}-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

Val Pro Cys Asn

(2S)-2-[(2R)-2-{[(2S)-1-[(2S)-2-amino-3-methylbutanoyl]pyrrolidin-2-yl]formamido}-3-sulfanylpropanamido]-3-carbamoylpropanoic acid

C17H29N5O6S (431.1838)


   

Val Pro Asn Cys

(2R)-2-[(2S)-2-{[(2S)-1-[(2S)-2-amino-3-methylbutanoyl]pyrrolidin-2-yl]formamido}-3-carbamoylpropanamido]-3-sulfanylpropanoic acid

C17H29N5O6S (431.1838)


   

5-(N,N-Dibenzylglycyl)-2-hydroxybenzamide

5-(N,N-Dibenzylglycyl)-2-hydroxybenzamide

C25H25N3O4 (431.1845)


   

(2R,3R,3aS,9bS)-3-(hydroxymethyl)-6-oxo-7-phenyl-1-(2-pyridinylmethyl)-3,3a,4,9b-tetrahydro-2H-pyrrolo[2,3-a]indolizine-2-carboxylic acid methyl ester

(2R,3R,3aS,9bS)-3-(hydroxymethyl)-6-oxo-7-phenyl-1-(2-pyridinylmethyl)-3,3a,4,9b-tetrahydro-2H-pyrrolo[2,3-a]indolizine-2-carboxylic acid methyl ester

C25H25N3O4 (431.1845)


   

(2S,3S,3aR,9bR)-3-(hydroxymethyl)-6-oxo-7-phenyl-1-(2-pyridinylmethyl)-3,3a,4,9b-tetrahydro-2H-pyrrolo[2,3-a]indolizine-2-carboxylic acid methyl ester

(2S,3S,3aR,9bR)-3-(hydroxymethyl)-6-oxo-7-phenyl-1-(2-pyridinylmethyl)-3,3a,4,9b-tetrahydro-2H-pyrrolo[2,3-a]indolizine-2-carboxylic acid methyl ester

C25H25N3O4 (431.1845)


   

(2s,10s,12r)-13-hydroxy-10-(2-methylbut-3-en-2-yl)-21-oxo-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-3-yl acetate

(2s,10s,12r)-13-hydroxy-10-(2-methylbut-3-en-2-yl)-21-oxo-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-3-yl acetate

C25H25N3O4 (431.1845)


   

13-hydroxy-10-(2-methylbut-3-en-2-yl)-21-oxo-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-3-yl acetate

13-hydroxy-10-(2-methylbut-3-en-2-yl)-21-oxo-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-3-yl acetate

C25H25N3O4 (431.1845)


   

(2s,10r,12s)-3-acetyl-12,13-dihydroxy-10-(2-methylbut-3-en-2-yl)-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-21-one

(2s,10r,12s)-3-acetyl-12,13-dihydroxy-10-(2-methylbut-3-en-2-yl)-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-21-one

C25H25N3O4 (431.1845)


   

3-acetyl-12,13-dihydroxy-10-(2-methylbut-3-en-2-yl)-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-21-one

3-acetyl-12,13-dihydroxy-10-(2-methylbut-3-en-2-yl)-1,3,14-triazapentacyclo[10.9.0.0²,¹⁰.0⁴,⁹.0¹⁵,²⁰]henicosa-4,6,8,13,15,17,19-heptaen-21-one

C25H25N3O4 (431.1845)